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3 feet.
Sonar.
== == Contact with magma bodies, depth of burial, or pressure from colliding plates.
Heat, along with applied pressures, either from depth of burial or from tectonic forces on rock.
At single depth graves, a traditional cemetery holds approximately 1,250 burial plots per acre. This could be doubled if double depth graves were dug.
In the United States, the National Electric Code dictates the depth of buried electrical lines. You have not provided enough info for me to give an accurate answer. For instance, some cables are manufactured for direct burial, that is to say without a conduit. Other considerations would be whether or not you are crossing a driveway, or alleyway. However, the maximum depth required is 24 inches to the top of the conduit or cable. Under certain conditions this depth may be reduced to 18 inches to the top of the conduit. Thank you for your desire to make a good installation.
Nothing, possibly. Metamorphism of sedimentary rock may be dependent on depth of burial, directed pressure, or exposure to high temperatures or hot fluids.
Anthracite forms from the metamorphism of bituminous coal. The metamorphism occurs due to pressures and temperatures from depth of burial or stresses derived from plate movements.
The depth of a burial can vary anywhere from 1.5 to 12 feet depending on the area. The traditional standard depth was six feet in an effort to avoid health risks and odors but modern preservation methods have made that unnecessary.
The physical processes important in transforming sedimentary rocks to metamorphic rocks are, Pressure, Temperature, Stress, Depth of burial and Metasomatism.
The excavation of the fossil was hard for the paleontologist.
At no point does it reach that depth. The deepest point is usually listed as 6,000 feet.